CLASSIFICATION OF THE EUCALYPTS. Holl 
outline in transverse section, yet becomes prismatic in 2. gonio- 
calyx, axially ridged in EL. incrassata, EL. pyriformis, &e., or 
ornamented with asperities, as in L. Moelscheana. 
3. Capsular Teeth.—In the larger number of campanulate and 
ovoid fruits the capsule is extensively overtopped by the calyx- 
tube—in these deeply sunken capsules the capsular teeth are 
usually included, but they are prominently exsert in Z. oleosa, EL. 
salmonophloia, whilst the obconic fruits must obviously have ex- 
sert capsular teeth. Apart from the exsert or included position of 
the teeth, their shape and length offer considerable variation, and 
may be usefully employed as minor distinctive specific characters. 
4, Capsule-cells.—The number of the fruit-cells varies from 
three to six, and is not constant for each species, though a given 
number may largely prevail. 
5, Fertile Seeds.—As pointed out by Bentham, the fertile seeds 
only differ from each other in being wingless or winged, and “ that 
the wing when it exists varies remarkably in size and shape in 
different seeds from the same specimen.” And though Baron F. v. 
Mueller, in his “ Hwcalyptographia,” has depicted the seeds (fertile 
and sterile) for each, yet he does not utilise the apparent dis- 
tinctions among the leading specific characters. I myself have 
thought it not worth the while to test the value of this structure. 
It may now be concluded that by the employment of a carpo- 
logical system in the classification of the Eucalypts, we have 
several factors available, which, taken in their varying combina- 
tions permit of a more detailed classification than is possible by 
the use of any other single structure ; if to the fruit we add the 
characters afforded by the pedicels which usually can be found 
with the fruits, then increased means of discrimination are afforded. 
The subjoined Schedule, giving the grouping of the species by 
carpological characters, can only be a tentative one, as, moreover, 
I have not the material by means of which the system might be 
most fully tested, and thus pursue the treatment of my subject 
towards a finality. 
Series A.—Ovoid, medially inflated, attenuated below, truncated 
above the middle. 
(1.) Ovoid. patens tetragona 
Behriana uncinata buprestium 
hemastoma salmonophloia goniocalyx 
populifolia trachyphloia Landsdowneana 
piperita (2.) Ovoid-oblong. (3.) Ovoid-conic, passing 
pauciflora crebra to Series Biconic. 
melliodora corymbosa amygdala 
obliqua occidentalis acmenoides 
saligna robusta odorata 
marginata - stricta paniculata 
diversicolor leucoxylon largiflorens 
maculata punctata santalifolia (pars) 
redunca Planchoniana capitellata (pars) 
oleosa salubris Gunnii 
